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Finding the Fourth Proportional to 298,983, 447,111 and 223,135.08

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Solution

The fourth proportional to 298,983, 447,111 and 223,135.08 is: 333,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,983 : 447,111 = 223,135.08 : x
  2. Step 2: Convert to fraction form
    298,983/447,111 = 223,135.08/x
  3. Step 3: Cross multiply
    298,983x = 447,111 × 223,135.08
  4. Step 4: Simplify right side
    298,983x = 99,766,148,753.88
  5. Step 5: Solve for x
    x = 99,766,148,753.88/298,983
  6. Step 6: Final answer
    x = 333,685.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.